28 AUSTRALIAN LEPIDOI'TEllA 



SPECIES 1.— CECOBIA FEAUESFELDI. (Plati; '.),) 



Tlic habitation of tliis genus is so similar in construction to tliose of many species of Eumeta, Tliyridopteryx, Metura, 

 and otlicr apterous genera, tliat we sliould naturally have supposed that the female perfect insect would also prove to he 

 wingless, hut such not being the case a separation, according to the system we follow, becomes inevitable, and this genus 

 must he included in tlie first division of the Psyeliidoe. 



The female caterpillar (fig. 1) drawn in the plate (the only sex in our possession) we found in November, existing on a 

 species of Eucalyptus which grows abundantly on the North Shore of Port Jackson. In length it measures under ii inch, the 

 head and thorax corneous, of a dull cream colour with black longitudinal bands and minute spots ; the abdomen dull l)rown- 

 black, paling underneath. 



The habitation, considerably larger than the larva, is composed of silk, covered longitudinally with slender tA\ igs closely 

 and evenly placed side by side of each other, in some instances projecting a little beyond the end. 



The Chrysalis (fig. 2) is chestnut brown, abdomen robust, and measures ,\ inch. 



In expanse of wings the imago attains to nearly li inch. 



The AnteuHce, long and filiform. 



The Labial palpi, (fig. 3) large, distinct, porrccted ; basal and terminal joints e([ual in Icngtli, the latter thin and 

 pointed ; intermediate one longer and more robust ; the whole covered rather thickly with hair. 



The Logx, stout, tlie posterior pairs much the largest; 2nd with two, and posterior witli four longish spurs on 



tibite. Tibia: and tarsi covered with liair-like scales, (anterior pair, fig. I> ; posterior, fig. 5.) 



The wings deflexed in repose. 



The head, thorax, and superior wings deep pur])lish black, with many sliort transverse bands of white : the under 

 wings and abdomen black, the latter sparingly clothed, extending considcraljly Ijcyond the wings and possessing an exsertcd 

 ovipositor partially concealed by a fringe of hair. 



Tlic perfect insect, the larva and case, on tlie leaf of one of the numerous species of Eucalyptus, are the present depictions. 



CE C I N E A . 



Oicmat, M;iclcay, M.SS. 



FuDii,. plus minusve alata. Jlas. et fu;iu. also antica3 sat trigonal, apice vix rotundato, costa arcuata. Abdomen in 

 marihus gracile, acuminatum, alas postcriorcs non superans : in foeminis robustum, alas posteriorcs nuQto supcrans ; segmento 

 terminali pilis longiiisculis fimbriato, ovidueto longo, cxscrto. Caput parvum. Antennte sat longic ; mas. artioulis subtiis 

 formatis subserratis, faciis quatuor cUiatis ; f(£iit. snbfusiforma3, squamosa. Palpi minimi, antrorsum porrecti, pLlis longius- 

 culis : mas. graoiles, acuminati ; articulus 2J'«- longior ; fcem. artieuli subsequalcs, basalis subglobosus. Pedes — aliis antici 

 longi, validi, coxis et fcmoril)us longis robustis, aliis postcriores longiores ; tibia; intermedia; calcaribus duobus, posteriorcs 

 quatuor longis. Larva crassa, earuosa, versicolor, segmentis abdominis mollil)us, thoracis corneis. Involucrum saeculiformc, 

 rhomboidale, pendens, particulis oorticalibus lignosis vel arenosis cxtus obteotum et intus serico dense assutum. 



Eemale with wings fully or partially developed. In both sexes fore wings somewhat trigonate, -with their tips slightly 

 rounded, and costte arched. Abdomen, «K(?e— thin, pointed, extending as far as the hind wings : /emo^e— robust, lengthened 

 considerably beyond tlie hind wings, and with the terminal articulation fringed with longish hairs, ovipositor long, exsertcd. 

 Head small. Antenna; moderately long : male — articulations produced beneath somewhat like serrations, each articulation 

 bearing four brushes composed of long cilia; : /t'i/io/e— somewhat fusiform, scaly. Palpi, very small, porrected forwards and 

 clothed with longish hairs ; male — slender, acuminated, with the middle joint longest ; /eraafe— joints nearly equal, tlic basal 

 being somewhat globular. Legs, in some the anterior pairs large and powerful, owing to the length and robustness of the 

 coxa; and femora : in others, posterior pairs largest, the former with two and latter Avith four long spurs on tibia;. Larva 

 thick, fleshy, abdominal portions soft, varying in colour ; thoracic corneous. Case, a lozenge-shaped pendulous bag, open at 

 both ends, covered with minute particles of hark, wood, or sand, and thicklv lined with silk. 



